JPH0137070B2 - - Google Patents

Info

Publication number
JPH0137070B2
JPH0137070B2 JP58249543A JP24954383A JPH0137070B2 JP H0137070 B2 JPH0137070 B2 JP H0137070B2 JP 58249543 A JP58249543 A JP 58249543A JP 24954383 A JP24954383 A JP 24954383A JP H0137070 B2 JPH0137070 B2 JP H0137070B2
Authority
JP
Japan
Prior art keywords
color
ink
density
black
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP58249543A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60143343A (ja
Inventor
Mitsuhiko Yamada
Hitomi Ahei
Katsuaki Kashiwabara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dainippon Screen Manufacturing Co Ltd
Original Assignee
Dainippon Screen Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dainippon Screen Manufacturing Co Ltd filed Critical Dainippon Screen Manufacturing Co Ltd
Priority to JP58249543A priority Critical patent/JPS60143343A/ja
Priority to GB08432008A priority patent/GB2154094B/en
Priority to US06/684,719 priority patent/US4656505A/en
Priority to DE19843447682 priority patent/DE3447682A1/de
Publication of JPS60143343A publication Critical patent/JPS60143343A/ja
Priority to GB08716302A priority patent/GB2191905B/en
Publication of JPH0137070B2 publication Critical patent/JPH0137070B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H04N1/6016—Conversion to subtractive colour signals
    • H04N1/6022—Generating a fourth subtractive colour signal, e.g. under colour removal, black masking

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Image Communication Systems (AREA)
JP58249543A 1983-12-30 1983-12-30 色修正方法 Granted JPS60143343A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP58249543A JPS60143343A (ja) 1983-12-30 1983-12-30 色修正方法
GB08432008A GB2154094B (en) 1983-12-30 1984-12-19 A multi-colour printing process
US06/684,719 US4656505A (en) 1983-12-30 1984-12-21 Method for color correction for multi-color printing plate pictures
DE19843447682 DE3447682A1 (de) 1983-12-30 1984-12-28 Verfahren zur farbkorrektur
GB08716302A GB2191905B (en) 1983-12-30 1987-07-10 A method for colour correction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58249543A JPS60143343A (ja) 1983-12-30 1983-12-30 色修正方法

Publications (2)

Publication Number Publication Date
JPS60143343A JPS60143343A (ja) 1985-07-29
JPH0137070B2 true JPH0137070B2 (OSRAM) 1989-08-03

Family

ID=17194549

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58249543A Granted JPS60143343A (ja) 1983-12-30 1983-12-30 色修正方法

Country Status (1)

Country Link
JP (1) JPS60143343A (OSRAM)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6172251A (ja) 1984-09-18 1986-04-14 Dainippon Screen Mfg Co Ltd 色分解信号の補正方法
JPH0644801B2 (ja) * 1987-01-21 1994-06-08 富士ゼロックス株式会社 下色除去装置
US7048349B2 (en) * 2004-01-12 2006-05-23 Xerox Corporation Color printing

Also Published As

Publication number Publication date
JPS60143343A (ja) 1985-07-29

Similar Documents

Publication Publication Date Title
US4656505A (en) Method for color correction for multi-color printing plate pictures
US4060829A (en) Method of color correction
US5729360A (en) Color image processing method and system
JP2887158B2 (ja) 画像処理装置
US5402253A (en) Color conversion method and apparatus with a variable gray component replacement ratio
US7321448B2 (en) Color proofing method and apparatus, and recorded medium on which color proofing program is recorded
JPS58211757A (ja) 階調値に依存した下色除去方法
JPH05276368A (ja) カラー画像処理方法及び装置
JPH0736609B2 (ja) カラー画像形成装置の下色除去方式
US6580822B1 (en) Device, method and record medium for color space conversion from RGB data to CMYK data
JP2906974B2 (ja) カラー画像処理方法および装置
JPH0137070B2 (OSRAM)
JP3360476B2 (ja) 画像処理方法及び装置
US5805313A (en) Color correcting method and color correcting device involving masking equation variation based upon gray levels for a selected color
JP2001223915A (ja) 画像処理方法、画像処理装置、および画像形成装置
JP4518408B2 (ja) 画像処理装置、方法、プログラム
JPH0137069B2 (OSRAM)
JPH0151826B2 (OSRAM)
JPS62203475A (ja) カラ−画信号処理装置
JP4093138B2 (ja) 画像形成用色データ生成方法及び装置
JP2624967B2 (ja) 色変換方法
JPH0614315B2 (ja) 色補正方法
JP3243404B2 (ja) カラー階調制御方法
JPS61212186A (ja) 色調調整装置
JP4101741B2 (ja) 画像処理装置、画像形成装置、画像処理方法、画像処理プログラム、および記録媒体